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E. J'. RICHMOND.

MACHINE TUR. FILING SAWS.

.1N-0.372366. PatentedNov. 8.1887.'

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MACHINE FOR FILING SAWS.

fpff Patented Nov. 8, 1887.. .we ffy/y2, l

l lll f (No Model.)

EDVARD .I AMES RICHMOND,

ArnNr ridono vOF CHESAPEAKE, MISSOURI.

.MACHINE FOR FILING sAws.

SPECIFICATION forming part of Letters Patent No. 372,766, dated November 8, 1887.

Application filed May 10, 1887. Serial No. 237,761, (No model.)

To all whom, it may concern:

Be it known that I, EDWARD JAMEs RICH- MOND, a citizen of the United States, residing at Chesapeake, in the county of Lawrence and State of Missouri, have invented a new and useful Improvement in Machines for Filing Saws, of which the following is a specification.

My invention relates to an improvement in machines for tiling saws; andit consists inthe peculiar construction and combination of de- A vices, that will be more fully set forth hereinafter, and particularly pointed out in the claims.

In the drawings, Figure 1 is a perspective view of a saw-filing machine embodying my improvement. i Fig. 2 is a vertical longitudinal sectional View of the same, taken on the line w x of Fig. 3. 'Fig. 3 is a vertical transverse sectional view taken on the line y y of Fig. 2.

A represents a table, which is supported upon standards or legs B, arranged at the ends of the table and connected together in pairs near their lower ends by means of crossbars C. Drepresents alongitudinal bar which has trunnions formed at its ends and journaled in openings made in the center ofthe bar C. On the said longitudinal bar is secured a treadle, E.

From the under side of the table A depends a pair of boxes, F, in which is journaled a horizontal longitudinal shaft, G. The said shaft is provided near its outer end with a crank-arm, H,which is connected to the treadle by means of a pitman, I. The inner end of the said shaft is provided with a crank-arm,K,

and at the extreme outer end ofl the shaft is a- Y ily-wheel, L. y

toward either end of the table, for the purpose to be hereinafter explained.

R represents a yoke, which is arranged on the upper side of the tubular guides of the plate N, and the ends of the said yoke are connected to the tabletop by means of bolts S.

ll represents the cross-head, which extends vertically from the inner edge of the table A, and the said cross-head is provided with a pair of parallel horizontal arms, U, that work longitudinally in the guide-tubes O of the plate N. The lower end of the cross-head is connected to the block M on the wrist-pin of the crank K by means of a pitman, V. The rear end of the said pitman is bifurcated, and is engaged by trunnions IV, which project from the sides of a block, X, pivoted on the lower end of the cross-head. By this means the cross-head is adapted to turn with the plate N.

To the vertically-projecting upper end of the cross-headis pivoted an arm, Y, which is adapted to move in a vertical plane, and is provided at its outer end with a right-angled extension, Z, which projects upwardly therefrom. On the upper side of the said arm is a tubular guide, A', the front end of which communicates with an opening made in the extension Z.

B represents a file-clamp,which is provided with a rearward-extending arm, C', adapted to fit in the tubular guide A', and has a forwardly-projecting arm, D', which is arranged to one side of and out of line with the arm C. In the front.end of the latter is made a socket or recess, E', adapted to receive the reduced portion of the rear' end of the le F.

G represents a block, which is adapted to slide on the arm D', and is clamped thereto at any desired adjustment by means of a setscrew, H. The lower end of this block is provided with an opening, which aligns with the recess or socket E,and through the said opening extends the front end of the file. By making the block G longitudinally adjustable on the arm D' the file-holder is adapted to secure a le of any size. The arm C is adapted to turn in th tubular guide A",so as to tilt orin- 4 cline the iile to any desired angle according to the inclination of the edges of the saw-teeth to IOO be filed, and the said arm C is secured to the arm Y by means of a set-screw, l', which permits the ille-holder to be clamped at any desired longitudinal adjustment or lateral inclination.

K represents a supporting-spring, which projects upward and rearward from the plate N, and the said spring is adapted to support the arm Y. The free end of the plate N has an index, L', which is arranged to sweep over a graduated scale, M', made on the upper side ofthe table A, and thereby indicate exactly the angle to which the plate N, and conscquently the file-holder and file, is turned.

On the rear edge of the table A is secured a longitudinalflange-board,N,which is arranged in a vertical position, and is provided on its outer side with a 'longitudinal groove, O'.

P represents a saw-clamp, which comprises a pairof longitudinal jaws, R', which are ilexibly connected together near theirlower edges, so that their upper sides are free to move laterally a slight distance toward and from each other,and are thereby adapted to receive and clamp a sawbladc between thejaws R, as shown at Figs. land 3. One of the `jaws It is provided on one side with a projectingtongue, S, which enters the groove O', and is thereby adapted to guide the saw-clamp longitudinally on the outer side of the dangc-board N. The lower edge of the saw-clamp is provided with a longitudinal rack-bar, T'.-

On the under side of the table, at suitable distances apart, are secured transverse arms U', which project beyond the rear side of the table and are provided at theiroutercnds with brackets `V/, in which are journaled horizontal shafts \V. On the said shafts are rigidly secured pinions X, which mesh with the rackbar on the under side of the saw-clamp, and to the outer ends of the shafts are secured levers or arms Y, by means of which the said shafts and pinions may be turned in order to canse the pinions to mesh with the rack-bar and move the saw-clamp longitudinally to successively present the saw-teeth to the action of the file.

Z represents a pair of U-shaped springs, which have their inner sides secured to the under side of the table, near the rear edge thereof, and the outer vertical arms of the said springs project upward beyond the saw-clamp and are provided at their upper ends with inwardly-projecting studs Athat enter recesses madein the plate or board Bz that bears against the outer side of the saw-clamp. rFliese springs serve to keep the board or plate B2 normally pressed against the outer side of the sawclamp and keep thcjaws of the latter pressed firmly against opposite sides of the saw-blade.

The operation of my invention is as follows: The spring K normally raises the arm Y to such a height that the file will be just above the serrated edge of the saw-bladeand ont of contact therewith. The operator, seated in front of the table, places his feet upon the treadle E, and by means of the said treadle imparts rotary motion to the shaft G. This causes reciprocatingmotion to be communicated to the cross-head and tothe tle-ho1de1,and the tile is thereby reeiproeated transversely back and forth across and over the serrated edge of the saw. By placing the right hand upon the arm Y the operator lowers the said arm sufficiently to cause the file to cut into the teeth of the saw and sharpen the same, and by varying this pressure on the said spring-actuated arm the file can be caused to out the sawtooth to any desired depth. As the plate N, to which the ile O is secured, is adapted to be turned to any desired angle on the table, it will be readily seen that the file may be caused to operate at any desired angle with respect to the saw.

When it is desired to remove the saw-blade from the clamp, the arm Y is first turned to a vertical position on the upper end of the crosshead in order to move the ille-holder out of the way of the saw.

Having thus described my invention, I claim 1. The combinatiomin a saw-tiling machine, of the table, the plate N, pivoted thereon and adapted to turn to any desired angle, the reci procatin g cross-head having the arms guided on the said plate, and the lilo-holder and connections securing the same tothe cross-head, Substautially as described.

2. The combination, in a machine for filing saws, of the table, the plate N, pivoted thereon, the reciprocating cross-head having the arms engaging the plate to guide the crosshead, the arm Y,pivoted to the crosshcad,the tile-holder adapted to he secured to the arm, and the spring K,attached to theplate N and movable therewith, the said spring being adapted to support the arm Y, for the purpose set forth, substantially as described.

3. The combination, in a machine for filing saws, of the table, the plate N, pivoted thereon and adapted to turn to any desired angle, the said plate having the guides O, the reciprocating cross-head having the arms guided in the guides O, the arm Y, pivoted to the crosshead and adapted to secure the file-holder, and the spring K', secured to the free end of the plate N and adapted to be turned therewith, the said spring being further adapted to support the arm Y, substantially as described.

4. The combination, in a machine for ling saws, of the reciprocating cross-head, the arm Y,secnred thereto, and the file-holder having the arm C secured to the arm Y,the forwardextending arm D', the socket E', and the movablc block G, adapted to be adjusted on the arm D and provided with the set screw H', said block having the opening to receive the frontend of the file, substantially as described.

5. The combination, in a machine for filing saws, of the table, the shaft G, having the crank-arm K,the box M, secured to the crankarm by a wrist-pin, the pitman pivotcd to the IOO IIS

said box, the' plate N, pivoted on the table In testimony that I claim the foregoing as 1o and adapted to turn thereon, for the purposey my own I have hereto afxed my signature in set forth, the cross-head having the arms bearpresence of two Witnesses.

ing on the said plate and provided at its lower end with a pivoted block with which the EDVARD JAMES RIGHMON D. outer end of th-epitman is pivotally connected,

and the arm Y, attached tothe cross-head and Witnesses:

adapted to secure the file-holder, substantially DON l?. ESTEP,

as described. A. S. BEREMAN. 

